21001072020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18421993}}^1$

素因数の和:18422024

約数の個数: 48

約数和(自身を含む): 61897899840

約数和(自身を除く): 40896827820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18421993, 36843986, 55265979, 73687972, 92109965, 110531958, 184219930, 221063916, 276329895, 350017867, 368439860, 552659790, 700035734, 1050053601, 1105319580, 1400071468, 1750089335, 2100107202, 3500178670, 4200214404, 5250268005, 7000357340, 10500536010, 21001072020]

約数ペア:

[(1, 21001072020), (2, 10500536010), (3, 7000357340), (4, 5250268005), (5, 4200214404), (6, 3500178670), (10, 2100107202), (12, 1750089335), (15, 1400071468), (19, 1105319580), (20, 1050053601), (30, 700035734), (38, 552659790), (57, 368439860), (60, 350017867), (76, 276329895), (95, 221063916), (114, 184219930), (190, 110531958), (228, 92109965), (285, 73687972), (380, 55265979), (570, 36843986), (1140, 18421993)]